Abstract Asiaticoside, a well-known ursane-type triterpene saponin widely used as a chemical marker in quality control of commercial samples of Centella asiatica, occurs in South African material (12… (More)

Abstract Pyrrolizidine alkaloids (PAs) and their N -oxides (PANOs) were detected in commercial rooibos tea which resulted in an investigation into the source of the contamination. Field studies… (More)

Abstract The ethnobotanical uses of wild olive, O. europaea subsp. africana (sometimes referred to as subsp. cuspidata ) in southern Africa and in other parts of Africa are reviewed. Chromatographic… (More)

The roots of Rafnia amplexicaulis have been used as a substitute for liquorice root and the leaves as a traditional medicinal tea in Cape (Khoi-San and Cape Dutch) Herbal Medicine. All published… (More)